Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 1996-1997 Chevrolet Astro . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.

PART

COLOR

LOCATION

12 VOLT
CONSTANT

RED (+)

@ IGNITION SWITCH HARNESS

STARTER

YELLOW (+)

@ IGNITION SWITCH HARNESS

STARTER
2

N/A

IGNITION
1

PINK (+)

@ IGNITION SWITCH HARNESS

IGNITION
2

N/A

IGNITION
3

N/A

ACCESSORY/HEATER
BLOWER 1

ORANGE (+)

@ IGNITION SWITCH HARNESS

ACCESSORY/HEATER
BLOWER 2

N/A

KEYSENSE

N/A

PARKING
LIGHTS ( - )

N/A

PARKING
LIGHTS ( + )

BROWN (+)

@ HEADLIGHT SWITCH

POWER LOCK

LIGHT BLUE (TYPE A)

IN DRIVERS DOOR HARNESS

POWER UNLOCK

WHITE (TYPE A)

IN DRIVERS DOOR HARNESS

DOOR TRIGGER

PURPLE (-)

@ HEADLIGHT SWITCH

DOMELIGHT
SUPERVISION

PURPLE (-), (Requires #775 relay)

@ HEADLIGHT SWITCH

TRUNK RELEASE

GREEN (-)

@ HATCH RELEASE SWITCH

SLIDING
POWER DOOR

N/A

HORN

BLACK (-)

@ STEERING COLUMN HARNESS

TACH

WHITE (AC)

@ ECM, See NOTE #1

WAIT TO
START LIGHT

N/A

BRAKE

WHITE (+)

@ SWITCH ABOVE BRAKE PEDAL

FACTORY
ALARM DISARM

N/A

ANTI-THEFT

N/A

EXTRA
INFORMATION

NOTE #1: The ECM (Electronic Control Module) is located on the DRIVERS SIDE of the ENGINE
COMPARTMENT, behind the BATTERY. The WHITE TACH wire will be located in a BLACK
Plug on the BCM.